- CFM Specialty Indoor Fireplace User Manual

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10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
When the unit is installed into a woodburning fireplace,
the minimum distance the mantel can be placed above
the fireplace is governed by local building codes
applicable to woodburning fireplaces. Consult local
authorities having jurisdiction for these clearances.
For applications requiring the use of a Zero Clearance
Kit, the minimum height a mantel can be installed
above the fireplace is 24" (610mm) from the top of the
upper louvres. The maximum mantel depth is 8"
(200mm). (Fig. 2)
The underside of the mantel will become
warm. Use only finishes which are heat
resistant and do not discolor.
Mantels
24" Min.
(610mm)
FP1325
Fig. 2 Minimum mantel height above fireplace.
Framing & Finishing
For Zero Clearance Kit applications, it is important to
determine the finished facing material before beginning
to frame. This will allow for the thickness of the finishing
material between the frame and the fireplace trim.
Similarly, consideration must be given to the 1" inch
depth of the air inlet channel sitting on the fireplace
base. Finishing material for the hearth should be flush
with the top of the air inlet channel.
If the fireplace is installed at floor level a noncombus-
tible hearth must extend a minimum 12" (305mm) in
front of the fireplace.
If the fireplace is recessed into the wall and at least 12"
(305mm) above floor level, no hearth is required.
The use of wallpaper adjacent to this
fireplace is not recommended as high
temperatures given off by this fireplace
may adversely effect the binders in the
adhesive used to apply the wallpaper.
NOTE: Insulating around the fireplace will result in
overheating and possible malfunctioning of the circulat-
ing fan.
Zero Clearance Applications
An alternate air supply is recommended
with this component.
For installation other than in existing woodburning
fireplaces such as new construction or renovation
projects, a Zero Clearance Kit must be used. The kit
enables these inserts to be installed in combustible
environments. Whenever using a Zero Clearance Kit,
consideration must be given to the dimensions of the
Zero Clearance Kit and the requirements of the Air Kit.
NOTE: If a Zero Clearance Kit is required for mod-
els LHEC20/LHER20/LHEC30 Natural Vent Inserts,
only the Vermont Castings, Majestic Products zero
clearance kit HEZC is approved to be used. When
using the HEZC with insert models LHEC20 or
LHER20, the Trim Closure Kit, LHE20TCK, must
also be installed.
35"
(889mm)
37¹⁄₄" (946mm)
27¹⁄₄" (692mm)
19¹⁄₈"
(486mm)
Air Inlet Channel
Drywall
Finish Wall
Decorative Trim Kit
FP1351
Fig. 3 LHE insert framing dimensions.